Two primary techniques to identify use cases are USER GOAL TECHNIQUE AND EVENT DECOMPOSITION.
Use case refers to an activity which a system perform as a result of the request input by a user.
User goal technique is used to determine the specific goal that must be perform by the system for the user; user goal technique identify all the users of the system and their goals for using the system.
The event decomposition is used to determine the event to which the system must respond.<span />
The answer is D, Only meiosis results in a reduction in chromosome number
Yes. Some mammals may have less hair/fur, but all mammals do. It is a defining characteristic of a mammal.
I believe the purpose of the horns in the monsters is to make them look scary for work and thus appear charming to the monster sexes. Assuming that the monsters mate sexually, the selection of the horn numbers will depend on the whether more numbers of it make one look beautiful or whether it incurs any work related advantage. A small monster colony has a large amount of monsters that have an abnormal amount of horns. This indicates that the abnormal number of horns are preferred over fewer horns as they carry a certain advantage of having a scarier look.
